This is exactly one my smally "gripes" with EUI... the Tech selection principle (of Vanilla CiV) was discarded for a direct access to the Tree-like function only and from multiple other gameplay routines, at that. Which causes certain UI glitches such as what you exposed (again), many6000125... I've previously asked for some quick (code) fix or hints even if i must repair it myself, but bc1 isn't interested or willing to help out. Fair enough, he's the author of that wonderful tool --but-- i'm sure the design (in this very specific feature case) has its inherent flaw(s). Oh-well, good luck with trying to determine what needs to be done. At this point, i gave up and will be soooooooo busy with "Beyond Earth" starting next Friday that i may never return to address such issues with EUI on my own. Made him some cool custom Icons though!